US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

1,430 races

D.N.F. Ultra

December 15, 2018 Race day in about 1 year
USA / South Atlantic / South Carolina / Greenville
Ultramarathon

Run Rabbit Run 50 & 100 Mile UltraMarathons

September 14, 2018 Race day in 12 months
USA / Mountain Region / Colorado / Steamboat Springs
Ultramarathon
Trail Mountain Steamboat Springs Running Series UTMB Qualifier Western States Qualifier

Paatuwaqatsi Run

September 08, 2018 Race day in 12 months
USA / Mountain Region / Arizona / Polacca
Ultramarathon
Desert Trail

Trail of the Dragon 50K/50mile Run

August 11, 2018 Race day in 11 months
USA / West North Central / Iowa / Ida Grove
Ultramarathon
Charity Trail

Trail of the Dragon 50K/50mile Run

August 11, 2018 Race day in 11 months
USA / West North Central / Iowa / Ida Grove
Ultramarathon
Charity Trail

Volcanic 50

August 04, 2018 Race day in 11 months
USA / Pacific / Washington / Marble Mountain Sno-Park
Ultramarathon
Trail Mountain Go Beyond Ultra UTMB Qualifier

Mo' Bell

August 04, 2018 Race day in 11 months
USA / East South Central / Tennessee / Burns
Ultramarathon

Mo' Bell

August 04, 2018 Race day in 11 months
USA / East South Central / Tennessee / Burns
Ultramarathon

Mo' Bell

August 04, 2018 Race day in 11 months
USA / East South Central / Tennessee / Burns
Ultramarathon

Mo' Bell

August 04, 2018 Race day in 11 months
USA / East South Central / Tennessee / Burns
Ultramarathon

Mt. Hood 50

July 14, 2018 Race day in 10 months
USA / Pacific / Oregon / Timothy Lake
Ultramarathon
Trail

Mt. Hood 50

July 14, 2018 Race day in 10 months
USA / Pacific / Oregon / Timothy Lake
Ultramarathon
Trail